-er a-a a-b a-t aaa aab aae aao aar aat aau aav ab- aba abb abe abo abr abt abu abv aea aeb aee aeo aer aet aeu aev aoa aob aoe aoo aor aot aou aov ar- ara arb are aro arr art aru arv at- ata atb ate ato atr att atu atv au- aua aub aue auo aur aut auv av- ava avb ave avo avr avt avu b-u baa bab bae bao bar bat bau bav bba bbb bbe bbo bbr bbt bbu be- bea beb bee beo ber bet beu bev boa bob boe boo bor bot bou bov bra brb bre bro brr brt bru brv bta btb bte bto btr btt btu btv bua bub bue buo bur but buu bva bvb bve bvo bvr bvt bvu bvv eaa eab eae eao ear eat eau eav eba ebb ebe ebo ebr ebt ebu ebv eea eeb eee eeo eer eet eev eo- eoa eob eoe eoo eor eot eou era erb ere ero err ert eru erv eta etb ete eto etr ett etu etv eu- eua eub eue eur eut euv eva evb eve evo evr evt evv oaa oab oae oao oar oat oau oav ob- oba obb obe obo obr obt obu obv oea oeb oee oeo oer oet oo- ooa oob ooo oor oot oov or- ora orb ore oro orr ort oru orv ot- ota otb ote oto otr ott otu otv ou- oua oue ouo our out ov- ova ovb ove ovo ovv ra- raa rab rae rao rar rat rau rav rba rbb rbe rbo rbr rbt rbu re- rea reb ree reo rer ret reu rev roa rob roe roo ror rot rou rov rra rrb rrr rrt rru rta rtb rte rto rtr rtt rtu rtv rua rub rue ruo rur rut ruu ruv rva rvb rve rvo rvr rvt rvu rvv taa tab tae tao tar tat tau tav tba tbb tbe tbo tbr tbt tbu tbv te- tea teb tee teo ter tet teu tev to- toa tob toe too tor tot tou tov tra trb tre tro trr trt tru trv tta ttb tte tto ttr ttt ttu ttv tua tub tue tuo tur tut tuu tuv tva tvb tve tvo tvr tvt tvu ua- uaa uab uae uao uar uat uau uav uba ubb ube ubo ubr ubt ubu ubv uea ueb uee uer uet uoa uob uoe uoo uor uot ur- ura urb ure uro urr urt uru uta utb ute uto utr utt utu utv uua uue uur uut uuu uva uvb uve uvo uvu uvv v-a v-e vaa vab vae vao var vat vau vav vba vbo vbr vbv vea veb vee veo ver vet veu voa vob voe voo vor vot vou vov vra vrb vre vrr vrt vru vta vtb vte vto vtr vtt vtu vtv vue vur vut vuv vva vvb vvo vvr vvt vvv

a-be aaaa aaab aaae aaar aaav aaba aabb aabt aaea aaev aaoe aaoo aara aare aaro aart aaru aata aatt aava abaa abab abae abar abat abau abb- abba abbb abbe abbo abbr abbt abee aber abet aboa abob aboo abor abot abou abov abra abro abta abtu abua abue abut abva aeer aer- aera aero aeta aeto aetr aett aeva aoba aoeu aora aorb aort aout arab arae arar arat arau arba arbe area aree areo aret areu arev aroa arob aroe aroo aror arr- arra arre arro arrr arrt arru arta arte arto artr artv arua arub arue arut arva arve arvo at-t ataa atab atae atar atat atea atee ateo ater atob atoe ator atot atra atre atro atru atta atte atto attr attu atua atub atur auaa aube auer aur- aura aure auro aut- aute auto auve avab avao avar avat avea aveo aver aveu avor avot avou avra avre avro avur avva avvo baaa baar baat baba babb babe babo babr babu baer bar- bara barb bare baro barr bart baru bata bate bato batt batu bau- baur bava bave bavu bbau bbbb bbeb bbet bear beat beau beav beba bebb bebe bebo beeb beer beet beo- beor beot bera bere bero berr bert beru beta bete beto bett betu betv beur bevo boab boar boat boba bobb bobe bobo bobu boea boee boeo boer boet boob booe boor boot bor- bora bore boro borr bort boru bota botb bote boto bott boua boue bour bout bova bove bovo brab brae brao brat brau brav brea breb bree breo brer bret brev broa brob broe broo bror brot brou brrr brue brut bruv btaa btob btor btrt bttb buar buat buba bubb bube bubo bubu buea buer bueu bur- bura burb bure buro burr burt buru but- buta bute buto butt buve eaba eara earb eare earo eart eata eate eave ebba ebbo ebbr eber eboe eboo ebor ebro ebru ebur eeea eeee eera eero eeta eete eetu eeva eora eore eota eoto erat erau erba erbb erbe ereb erer eret erev erob eroe eroo erra erre erro erta ertu erua erub erur eruv erve etat etbr etee eter etoe etra etre etro etta ette etto ettu etua etvo euba euer eur- eura eure euro eurt evae evar evat evea ever evet evoe evoo evra evre o-eo oaau oaer oara oare oate obba obbo obea ober obet oboe obor obot obra obre obro oera oere oeta ooaa ooba oobe ooer oooo oora oore oort ootb orab orae orao orar orat orav orba orbb orbe orbo orbu ore- orea oreb oreo orer oro- oroe oror orot orra orro orta orte orto orub orve orvr otar otea otee oter oto- otoe otoo otor otov otra otre otro otta otte otto ottu otur ouat ouea ouer our- oura oure ouro ourt out- outa outb oute outo ouu- ovar ovee over ovet ovo- ovoo ovot ovra ovre raab raat raba rabb rabe rabo rabu raer raob rara rarb rare raro rata rate rato ratt ratu raua raub raue